Russound CAM6.6 Multi-Zone Audio Controller Amplifier – 6 Zones / 6 Sources

Sonance 12-50 Multichannel, Multi zone, 6 Rooms Digital Amplifier.

Outlaw Audio Model 7075 , 7-Channel Power Amplifier in factory box with manuals

800W 2 Channel Bluetooth Mini HIFI Power Amplifier Audio Stereo Amp Home Car FM

6 Source 6 Zone Multiroom Controller Amplifier

210W/Ch 5-Ch Class AB Home Theater Power Amplifier XLR/RCA High-Fidelity HTA5200

Sonance C4630 6-Zone / 4-Source Multi-Channel Audio Distribution Amplifier

Crestron SWAMPE-8 Multiroom 8 Zone Expansion Switcher Amplifier